Improvement in loom-shuttles



TQ MARTIN.

Loom-Shuttles.

No. 135,652. Patented Feb.11,173.

,4M Pimm -umosRAPll/c co, M xmapeuf's Moussa) v NrrED STATES PATENT FEICE THOMAS MARTIN, OF CHELSEA, MASSACHUSETTS.

IMPROVEMENT IN LOOM-SHUTTLES.

Specification forming part of Letters Patent No. 135,652, dated Febiuary ll, 1833.

is a specification My invention is an improvement upon the shuttle described in Letters Patent No.1 23,184, dated January 30, 1872, and granted to Joseph Martin. The tension device described in that patent does not operate so perfectly as is desirable, although in other respects the shuttle therein described is far preferable tothe ones in common use.

After repeated practical tests I satisiied myself that none of the tensions acting upon the yarn after it left the quill would enable the shuttle to make perfect Work, and I therefore turned my attention to adaptingtheWell-known tension device, consisting of a spring and friction-tinger, for use in it 5 and my invention consists in the adaptation of that tension device to a shuttle for Weaving narrow fabrics having an open back to receive the quill-back of the shuttle-race. y

In the drawing, Figure 1 is a longitudinal section through my improved shuttle. Fig. 2 is a modification.

The shuttle-frame A and the quill B do not differ from the corresponding parts of the shuttle described in the patent above mentioned,

except that a slot is made in the frame long enough to allow the yarn to extend from either extremity of the quill to the eyelet in a straight line, and wide enough to allow a portion of the linger b to extend through it. The spring a is fastened to the frame at one end, and the other end bears upon the fin ger b near its pivot. This finger b is a wire, one end of which is pivvyarn between the eye and the quill.

oted to the frame A, and the other end, which is provided with a friction-surface, bears upon the quill B. This friction-surface, which pret'- erably is pivoted to the end of the linger, bears upon the quill on the side opposite to that where the yarn leaves the quill, and extends from one side of the nger and away from the yarn in order to prevent the yarn from catching in the finger.

Fig. 2 does not differ from Fig. l except as tothe shapeA of the slot through which the yarn extends from the quill to the eyelet. This slot is made large enough at the side neXt the quill to receive the spring and linger. The friction-surface in both iigures rests upon the upper surface of the quill, when the shuttle is in use, and the yarn leaves the quill on its lower surface, so that the yarn lies under the finger and its spring; and therefore the friction-surface on the end of the finger must extend upward--that is to say, away from the This friction-surface lies all on one side of the finger.

This shuttle retains all the advantages of that described in the patent above mentioned, and is far superior to that as regards tension.

What I claim as my invention is- The improved shuttle for weaving narrow fabrics having an open back to receive the quill-back of the race, a slotthrough the frame of sufcient length to allow the yarn to extend in a straight line from the extremities of the quill to the delivery-eyelet, and the spring a and linger b, the Whole constructed and arranged together as specified.

THOMAS MARTIN.

Witnesses:

FRANCIS J. LIPPETT, HENRY W. HOLLAND. 

